I think just my one little one is a silkie?
The other 2's look like this
Hm, then only that one is a pure Silkie. However, I can see beards, dark beaks, and possibly crests on two of the chicks. One of them may be a Silkie/Cochin mix or some form of Sizzle project. Pure Cochins will not have beards or crests, and should have a pale yellowish beak.